sweet potato pie with ginger streusel

Ingredients For sweet potato pie with ginger streusel

• 1 1/2

  sweet potatos, peeled, cubed and boiled
• 1

  batch pie dough (homemade or store bought)
• 1 can

  evaporated milk
• 3/4 c

  sugar
• 1/4 c

  brown sugar
• 3

  large eggs
• 1 tsp

  salt
• 1 tsp

  vanilla
• 1/4 c

  butter, softened
• 1 tsp

  cinnamon
• 1/2 tsp

  cloves
• 1/4 tsp

  all spice
• zest of one orange
• FOR THE STREUSEL
• 15

  gingersnap cookies
• 6 Tbsp

  butter
• 1/2 c

  flour
• 1/2 c

  sugar
• FOR WHIPPED CREAM
• 1/2 c

  heavy cream
• 1 Tbsp

  maple syrup
• 1/4 c

  sugar