Preheat the oven to 325°F. Line an 8" square baking pan with parchment paper and set aside.
In a large microwave-safe bowl, melt the chocolate chips with the butter, working in 30-second intervals and stirring after each interval until smooth. Stir in both sugars, the prepared egg replacer, and vanilla extract.
1 cup (170g) semisweet chocolate chips, ¾ cup (170g) unsalted butter, 1 cup (200g) granulated sugar, ½ cup (100g) light brown sugar, 2 eggs, 1 teaspoon vanilla extract
Add the flour, cocoa powder, salt, and baking soda and stir until combined.
1 cup (148g) flour, ½ cup (42g) unsweetened cocoa powder, ½ teaspoon fine sea salt, ¼ teaspoon baking soda
Transfer half of the brownie batter to the prepared pan. Sprinkle the chopped Rolos on top, then finish with the remaining batter, using a rubber spatula to spread into an even layer. Bake for 45-55 minutes, or until the edges are set and a toothpick inserted into the center comes out with moist crumbs.
1 ½ cups Rolos
Allow brownies to cool in the pan completely before removing and slicing.
Notes
To make these brownies without eggs, I recommend Bob's Red Mill Egg Replacer. You will need 2 tablespoons of powdered egg replacer mixed with 4 tablespoons water.
I use Bob's Red Mill 1 to 1 flour to make these brownies gluten free, but you should be able to use any AP flour without making adjustments to the recipe.
You can use any chocolate-covered caramel candy you like. Cadbury Caramello candy works well here, too.
It's important to allow the brownies to cool completely and allow them to chill for a bit before slicing. This ensures that the brownies set up properly, as they are extra gooey and fudgy.
Optional: after cooling, chill in the refrigerator for 1 hour to ensure they have fully set up.