Step 1: Make the Yellow Cake
- Preheat your oven to 350°F and grease a 13×9-inch baking dish.
- In a mixer, beat butter and sugar until light and fluffy. Add eggs one at a time, then mix in vanilla extract.
- In a separate bowl, sift together flour, baking powder, and salt. Gradually add dry ingredients to the wet mixture, alternating with milk. Mix until just combined.
- Pour batter into the prepared pan and spread evenly. Bake for 20–22 minutes or until golden brown and a toothpick inserted in the center comes out clean. Cool completely.
Step 2: Add the Ice Cream Layer
- Let the strawberry ice cream soften at room temperature for about 20 minutes until spreadable but not melted. Stir or beat it gently for smooth consistency.
- Spread softened ice cream evenly over the cooled cake layer using an offset spatula. Freeze for at least 2–4 hours until firm.
Step 3: Whip the Cream
- In a chilled bowl, whip heavy cream with vanilla extract until stiff peaks form (about 5 minutes). Spread whipped cream evenly over the frozen ice cream layer.
Step 4: Prepare the Crunch Topping
- In a food processor, pulse vanilla wafers and freeze-dried strawberries into fine crumbs. Add gelatin powder and pulse again. Slowly drizzle in melted butter while pulsing until crumbs clump together slightly.
No food processor? Crush cookies and strawberries in a Ziploc bag with a rolling pin, then mix with gelatin and butter in a bowl.
Step 5: Assemble and Freeze
- Sprinkle the crunch topping generously over the whipped cream layer, pressing lightly to adhere.
- Cover loosely with plastic wrap and freeze overnight or for at least another 4 hours.
Step 6: Serve
Remove from freezer about 10 minutes before serving to soften slightly for easy slicing. Use a hot knife (dip in warm water between cuts) for clean slices.