Preheat your oven to 350°F and grease a 9x13 baking pan with butter, coating the bottom and all four sides. This prevents sticking when you flip the whole operation later, which saves you from crumb disaster. I learned this the hard way after watching a perfect cake crumble apart trying to release from a pan.

Cream together the unsalted butter and granulated sugar in a large bowl for about 2-3 minutes until the mixture turns pale and fluffy. This step aerates the batter, which means air pockets form inside the crumb—those are what make the cake tender rather than dense. Use an electric mixer if you have one, because hand-whisking takes twice as long and your arm gets tired.

Beat in the 2 large eggs one at a time, letting each one fully incorporate before adding the next. Add the vanilla bean paste after the eggs and mix until you see those tiny vanilla specks throughout the batter—that's your visual cue that it's distributed. The reason this order matters: eggs emulsify the butter, and vanilla seeds need that emulsion to spread evenly through your 4th of july poke cake cozy recipe.

In a separate small bowl, whisk together the 2 cups flour, 1 tsp baking powder, and 1/4 tsp salt, breaking up any lumps. Alternate adding the dry mixture and the 1/2 cup milk to the butter mixture, starting and ending with dry ingredients—this prevents overmixing, which toughens the crumb. The batter should look thick enough to hold shape in a spoon, not runny.

Fold in the 1/2 cup white chocolate chips gently by hand using a spatula, turning the batter over itself rather than stirring aggressively. Add the red gel food coloring now—just 1 tablespoon—and fold until you see a pale patriotic pink throughout. Pour the batter into your prepared pan and smooth the top with an offset spatula or the back of a spoon.

Bake for 38-42 minutes until a toothpick inserted in the center comes out clean or with just a few moist crumbs clinging to it. The cake will smell buttery and vanilla-forward, and the edges should just begin to pull away from the sides of the pan. Don't overbake or the whole thing becomes dry and crumbly—I learned that after a July celebration where everyone politely ate small bites and called it "tender."

Remove the cake from the oven and let it cool for 5 minutes in the pan, then pierce it all over with a fork or wooden skewer, creating holes about 1/2 inch deep and 1 inch apart. This is where the magic happens: you're creating vessels for the jam to settle into. Work methodically across the entire cake so no section feels dry while the rest drinks in sweetness.

Spoon the strawberry jam evenly across half the cake surface, letting it sink into those holes. Spoon the blueberry jam across the other half, creating that patriotic color block—red and blue separated by white crumb. Wait 10 minutes before frosting so the jams set into those pockets rather than sliding around under the frosting.