This cherry sheet cake has been a weekend staple in my kitchen ever since I first made it for a summer picnic. I wanted something simple that used pantry staples but still tasted like a made-from-scratch dessert. The boxed white mix keeps the process quick, while cherry gelatin and a blitz of pureed maraschino cherries give the crumb a subtle, nostalgic cherry flavor and beautiful pink hue. The almond buttercream on top adds a fragrant, slightly nutty counterpoint that lifts the whole cake into something special without complicated technique.

I discovered this version when I was short on time for a family gathering: I had a white cake mix, a jar of cherries, and a favorite jar of almond extract. The result was so moist and crowd-pleasing that it immediately earned a spot among our go-to sweets. Texture is where this cake shines — a tender, even crumb that holds up well under a creamy frosting. The frosting is light and velvety thanks to a bit of cream cheese that balances the sweetness and keeps it from being cloying. It’s the kind of dessert that gets passed around second and third helpings, and it’s easy enough to make for 16 people with minimal fuss.

Ingredients

• White cake mix (1 package): A basic boxed mix is the convenient backbone of this cake. I use a standard 15.25-ounce white cake mix for dependable texture — don’t substitute a dense pound cake mix.
• Eggs (3 large): Provide structure and lift. Use large eggs at room temperature for better emulsification and a finer crumb.
• Vegetable oil (3/4 cup): Keeps the cake moist and tender. Neutral oils like canola or sunflower work similarly; avoid olive oil which imparts flavor.
• Water (1/2 cup): As the liquid called for on the boxed mix; the cherry puree contributes additional moisture so the crumb stays soft.
• Cherry Jell-O (3 ounces): Adds concentrated cherry flavor and a pretty tint; use the single-serving or small packet equivalent (3-ounce package).
• Maraschino cherries (10 to 12 ounces, drained): Blended into a puree for flavor and color. Drain well and reserve a few cherries for garnish if desired.
• Butter (1/4 cup) for frosting: Softened unsalted butter gives the frosting body; let it sit at room temperature for a silky beat.
• Cream cheese (4 ounces) for frosting: Softened cream cheese tempers the sweetness and yields a smooth finish — full-fat gives best texture.
• Almond extract (2 teaspoons): Strong and fragrant — a little goes a long way. If you prefer a milder note, reduce to 1 teaspoon.
• Powdered sugar (3 cups) for frosting: Sifted for lump-free frosting; adjust quantity for preferred sweetness and consistency.
• Milk (2 to 3 tablespoons) for frosting: Use whole milk for richness or lower-fat milk to thin the frosting as needed; add gradually for desired spreadability.

Instructions

Preheat and prepare: Preheat the oven to 350°F. Grease a 9x13-inch baking pan with butter or nonstick spray and line with parchment if you prefer easier removal. Preheating ensures even lift and predictable baking time. Puree the cherries: Drain the maraschino cherries well to avoid extra syrup bombarding the batter. Place cherries in a blender or food processor and pulse to a coarse puree; for a smoother color and flavor, blend until almost liquefied but not completely paper-thin. Reserve any large pieces for garnish. Mix the batter: In a large bowl, combine the boxed white cake mix, 3 large eggs, 3/4 cup vegetable oil, and 1/2 cup water. Beat on medium speed until smooth and no dry streaks remain, about 1 to 2 minutes. Add the 3-ounce packet of cherry gelatin and the pureed cherries and mix until evenly incorporated; the batter will take on a light pink tone. Avoid overmixing — stop as soon as the batter is uniform. Bake: Pour batter into the prepared 9x13 pan and spread to the edges, tapping the pan gently on the counter to release large air bubbles. Bake at 350°F for approximately 28 to 32 minutes. Test by inserting a toothpick into the center — it should come out with a few moist crumbs but not wet batter. Ovens vary, so begin checking at 25 minutes if yours runs hot. Cool: Allow the cake to cool in the pan on a wire rack for 20 to 30 minutes. Cooling slightly before frosting prevents the buttercream from melting into the crumb. For the cleanest presentation, cool completely to room temperature before frosting. Make the frosting: While the cake cools, beat 1/4 cup softened butter and 4 ounces softened cream cheese together until light and smooth, about 2 minutes on medium speed. Add 2 teaspoons almond extract, then add 3 cups sifted powdered sugar in two additions. Beat until thick and spreadable, adding 2 to 3 tablespoons milk as needed to reach a glossy, pipeable consistency. Taste and adjust almond extract if desired; remember the flavor will mellow slightly on the cake. Frost and finish: Spread the buttercream evenly over the cooled cake using an offset spatula. If desired, press a few halved maraschino cherries or toasted sliced almonds into the frosting for a decorative finish. Chill briefly for firmer slices or serve at room temperature for a softer bite. Slice into 16 pieces and enjoy.

Storage Tips

Because the almond buttercream contains cream cheese, store leftovers refrigerated in an airtight container for up to four days to maintain quality and food safety. For transport, place the cake on a flat board and cover loosely with plastic wrap. To freeze, wrap individual unfrosted slices tightly in plastic and foil; freeze up to two months. Thaw frozen cake in the refrigerator overnight, then bring to room temperature before frosting to avoid condensation on the crumb. If the frosting softens in storage, chill briefly to firm it back up before slicing.

Ingredient Substitutions

If you prefer a dairy-free option, swap the cream cheese and butter in the frosting for plant-based alternatives and use a non-dairy milk for thinning; flavor and texture will be slightly different but still satisfying. For a gluten-free variation, use a certified gluten-free white cake mix and confirm the gelatin is gluten-free. If you’d rather skip Jell-O, reduce the water by a tablespoon and increase pureed cherries to maintain moisture, or use cherry pie filling thinned with a little water for chunkier fruit in the crumb.

Serving Suggestions

Serve slices with a small scoop of vanilla or almond ice cream and a drizzle of drained cherry syrup for an elegant presentation. Toasted sliced almonds scattered over the frosting add crunch and visual contrast. For a casual gathering, cut into bars and serve on a platter with paper napkins; for a fancier finish, pipe rosettes of remaining buttercream and top with a single halved maraschino cherry on each piece.

Seasonal Adaptations

In summer, replace maraschino cherries with fresh sweet cherries that have been pitted and simmered with a touch of sugar to concentrate flavor; cool and puree before adding to the batter. For winter holidays, swap almond extract for a half teaspoon of rum or brandy and fold in a teaspoon of cinnamon for warmth. You can also fold 1/2 cup chopped walnuts or pecans into the frosting for a holiday crunch that pairs nicely with the cherry notes.

Meal Prep Tips

Bake the sheet a day ahead and store it tightly covered at room temperature if you’ll frost it within 24 hours; otherwise refrigerate. Whip the frosting the morning you plan to serve so it’s fresh and airy. To portion for lunches or grab-and-go snacks, cut into single-serving squares and place in shallow containers with parchment liners to keep slices from sticking together. This cake travels well when chilled and lightly packed.

Success Stories

I once made this cake for a school fundraiser and volunteers kept asking for the recipe — they loved how moist it stayed even after several hours on the table. At another gathering, I substituted fresh cherries and the cake became the highlight of the evening; a friend told me it tasted like a bakery version from her childhood. The consistency of results makes it my go-to when I need a dessert that will please a crowd without a lot of last-minute stress.

Enjoy this cherry sheet cake warm or at room temperature with a cup of coffee or a scoop of ice cream. It’s an approachable recipe that’s easy to adapt, and once you try it you’ll likely keep it bookmarked for potlucks, birthdays, and casual dinners. Happy baking — and don’t forget to save a slice for yourself.