Step 1

Preheat the oven to 375 degrees F.

Step 2

Line a 9x13-inch baking pan with parchment paper. Make sure the ends extend up the sides.

Step 3

Grease the parchment paper.

Step 4

In a large bowl, beat the melted butter and the brown sugar until blended.

Step 5

Beat in the eggs and the vanilla to the butter mixture.

Step 6

In a large, separate bowl, mix the flour, the baking powder and the salt.

Step 7

Gradually the dry ingredients mixture into the butter mixture.

Step 8

Stir in 1/2 of the pecans, 1/2 of the M&M’s™, 1/2 of the pretzels, 1/2 of the chocolate chips, and 1/2 of the butterscotch chips.

Step 9

Spread the mixture into the prepared pan.

Step 10

Bake until a toothpick inserted into the center comes out clean, about 20-25 minutes.

Step 11

Let the pan cool completely on a wire rack, about 20 minutes.

Step 12

Spread the caramel topping over the bars in the pan.

Step 13

Sprinkle the bars with the remaining pecans, the remaining M&M’s™, the remaining pretzels, the remaining chocolate chips, and the remaining butterscotch chips.

Step 14

Using the overhanging parchment paper, lift the bars from the pan.

Step 15

Slice and serve.