What makes this ice cream cake “soft and chewy”?
The crust is the secret. Instead of a hard-packed cookie crumb base, we bake a press-in cookie crust with melted butter and brown sugar. It stays tender even when frozen, like the center of a great cookie.
Do I have to use a springform pan?
Nope. A 9-inch cake pan works too. Line it with parchment with plenty of overhang so you can lift the cake out. If it feels stuck when frozen, do not fight it. You can also serve it straight from the pan (just slice and lift out wedges).
How do I get it out of a springform cleanly?
After the 8 to 12 minute rest, run a thin knife around the edge, then unlatch the springform ring. If you lined the sides with parchment, it is basically easy mode.
How do I keep the ice cream from getting icy?
Work quickly, keep your freezer cold, and wrap well. Ice crystals usually come from temperature swings and air exposure. Double wrap helps a lot.
Can I use homemade whipped cream instead of whipped topping?
You can, but it freezes harder. If you want homemade, stabilize it: whip 1 cup heavy cream with 2 tablespoons powdered sugar and 1 teaspoon vanilla, plus 1 to 2 teaspoons instant pudding mix (brand strength varies) or 1 tablespoon softened cream cheese. Note: the cream cheese version can add a slight tang and a thicker texture, which some people love.
Can I make this ahead?
Yes. This cake is at its best made 1 to 3 days ahead. It gives the layers time to firm up and slice clean.
What ice cream works best?
Most store-bought ice cream works great. Avoid ultra-low-fat varieties if you can. They freeze harder and taste icier. Regular, full-fat ice cream is the creamy MVP here.