Triple Berry Rhubarb Slab Pie

INGREDIENTS

1 5/8 cups

all purpose flour

1/2 cup

butter (slightly soften, cut into small pieces)

1/2 tsp

salt

3 oz

half and half (plus a little extra as needed)

egg yolk

1 1/2 cups

rhubarb (diced)

2 1/2 cups

frozen triple berry (blackberries, raspberries, and blueberries)(slightly thawed)

1 cup

sugar

3 tbsp

corn starch

juice from half a lemon

ICING

2 cups

powdered sugar

to 3 Tbs milk

1/2 tsp

vanilla extract

1 tsp

almond extract