Step 1: Bake the Brownies
Start by preheating your oven according to the instructions on the brownie mix box. Prepare the brownie mix by following the instructions on the box (this typically involves adding eggs, oil, and water). Pour the batter into a greased baking pan and bake as directed. Once they’re done, allow the brownies to cool completely in the pan. Once cool, cut them into small squares or crumble them into bite-sized pieces.

Step 2: Prepare the Whipped Cream
In a large mixing bowl, pour the heavy cream, powdered sugar, and vanilla extract. Using an electric mixer, beat the ingredients together on high speed until stiff peaks form. This should take about 3-5 minutes. Once done, set the whipped cream aside in the fridge to keep it chilled while you work on the next layer.

Step 3: Make the Mint Chocolate Pudding
In another bowl, whisk together the instant chocolate pudding mix and milk. Stir in the peppermint extract to give it that minty flavor. If you want to add a pop of green for St. Patrick’s Day, drop in a few drops of green food coloring and mix until you achieve your desired shade of green. Let the pudding sit for a few minutes to thicken.

Step 4: Assemble the Trifle
In a large trifle dish or a glass bowl, begin layering the dessert. Start by adding a layer of brownie pieces at the bottom. Then, spoon over a layer of the mint chocolate pudding, followed by a layer of whipped cream. Repeat these layers until all the ingredients are used up, finishing with a final layer of whipped cream on top.

Step 5: Garnish and Chill
Once your trifle is assembled, garnish the top with mini chocolate chips, mint leaves, or green sprinkles for a festive touch. Refrigerate the trifle for at least 2 hours before serving to allow the flavors to meld together and the layers to set.