Oreo Crust
1️⃣ Combine butter and cookies using a food processor (pulsing) or pastry cutter until the mixture is very fine. 🍪🧈

2️⃣ Press Oreo crumbles onto a 9-inch tart pan. Make sure to spread crumbles out evenly and apply pressure on the sides and bottom using fingers, a spatula, or the back of a flat measuring cup. 📏

3️⃣ Refrigerate the crust and set it aside. ❄️

Chocolate Filling
4️⃣ Combine all ‘Chocolate Filling’ ingredients in a pot. Heat on medium-low heat and stir continuously until the mixture is dissolved. It does not have to come to a boil. 🍫🔥

5️⃣ Taste the chocolate filling and add more sugar if desired. 🍬

6️⃣ Remove promptly once it is dissolved. ⏳

Combine
7️⃣ Pour the chocolate filling onto the Oreo crust. Let it cool for 10 minutes, then refrigerate for about 4 hours or up to overnight. ❄️⏲️

8️⃣ Top with berries and sprinkle the berries with powdered sugar. 🍓🍥

9️⃣ Serve and enjoy! 🎉