1 16 oz bag of mini pretzels, crushed
12 tablespoons instant milk powder
2/3 cup malted milk powder
1 cup packed brown sugar
1/2 cup white sugar
2 1/2 teaspoons salt (I thought this was too much - I'll decrease it to 2 teaspoons next time)
1 teaspoon vanilla
Mix together, then pour 3 sticks + 4 tablespoons melted butter over the pretzel mixture.