Brownie, Pudding & Milky Way Mousse Trifle {In a Mason Jar}

INGREDIENTS

box brownie mix plus the ingredients called for on the box

1/4 cup

corn starch

1/2 cup

sugar

1/8 tsp

salt

3 cups

milk

6 oz

semi-sweet baking chocolate, chopped

1 tsp

vanilla extract

Milky Way bar (2.05 oz), chopped

1 cup

plus 1 1/2 tbs heavy whipping cream

1 oz

bar of chocolate, for garnish (optional)