Salted Chocolate Puppy Chow with Pretzels

INGREDIENTS

7 cups

Rice Chex Cereal

1 1/2 cups

chocolate chips (use melts if you omit use peanut butter)

1/3 cup

peanut butter, smooth (optional)

1 3/4 tsp

coarse salt, more if desired

1 1/2 cups

brownie mix (or 1 1/4 C. powdered sugar plus 1/4 C. unsweetened cocoa powder)

3 cups

pretzels