Prepare Crust – Preheat oven to 325°F (160°C). Mix Oreo crumbs, melted butter, cocoa powder, and food coloring until combined. Press into the bottom of a 9-inch springform pan. Bake for 8 minutes, then set aside.
Make Cheesecake Batter – Beat cream cheese and sugar until smooth. Add eggs one at a time, mixing slowly. Stir in sour cream, heavy cream, cocoa powder, vanilla, and food coloring. Mix until creamy and uniform.
Bake Cheesecake – Pour batter over crust. Place the springform pan in a larger roasting pan filled with 1 inch of hot water (water bath). Bake for 55–65 minutes until the edges are set but the center jiggles slightly.
Cool and Chill – Turn off oven, crack the door, and let cheesecake cool inside for 1 hour. Remove, cover, and chill for at least 4–6 hours or overnight.
Add Strawberry Topping – Once chilled, top with fresh strawberry halves. Brush with melted strawberry jam for a glossy finish. Optional: drizzle melted chocolate for an elegant touch.