Step 1: Preheat your oven to 350°F (175°C). Grease a 12-inch round pizza pan or line it with parchment paper for easy removal.
Step 2: In a large mixing bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
Step 3: Beat in the eggs, one at a time, followed by the vanilla extract, mixing until well combined.
Step 4: In a separate bowl, whisk together the flour, baking soda, and salt.
Step 5: Gradually add the dry ingredients to the wet mixture, mixing until just combined. Be careful not to overmix!
Step 6: Gently fold in the semi-sweet chocolate chips until evenly distributed throughout the dough.
Step 7: Spread the cookie dough evenly onto the prepared pizza pan, using a spatula to smooth the top.
Step 8: Bake in the preheated oven for 15-20 minutes, or until the edges are golden brown and the center is set. A toothpick inserted into the center should come out clean.
Step 9: Allow the dessert pizza to cool in the pan for about 10 minutes before transferring it to a wire rack to cool completely.
Step 10: Once cooled, drizzle the frosting over the top in a decorative pattern.
Step 11: Top with sprinkles, chopped nuts, or mini marshmallows for an extra touch of fun and flavor, if desired.