Prep your pan: Line an 8x8 inch pan with parchment, leaving overhang on the sides.
Make the crumble: In a food processor, pulse cookies and freeze-dried strawberries into crumbs. Stir in melted butter until mixture resembles wet sand. Set aside.
Assemble: Spread half the vanilla ice cream into the pan. Freeze for 15 minutes. Then layer with strawberry ice cream. Freeze again for 15 minutes. Top with remaining vanilla ice cream. Smooth and freeze until solid (about 2 hours).
Add the crumble: Press crumble firmly over the frozen top layer. Freeze 30 minutes more to set.
Slice and serve: Use parchment flaps to lift out. Slice into bars. Devour immediately or wrap and store.
Notes
No food processor? Crush cookies in a zip-top bag with a rolling pin.
Swap Golden Oreos with shortbread cookies for a richer base.