crumb topped lingonberry pie

Ingredients For crumb topped lingonberry pie

• 1/2 c

  butter,softened
• 1 Tbsp

  butter, softened
• 2/3 c

  sugar
• 1 1/2 c

  flour
• 1 tsp

  baking powder
• 1

  egg
• 13 1/2 oz

  lingonberries, thawed and drained
• 7 Tbsp

  sugar
• 1 Tbsp

  cornstarch
• 1/2 c

  oatmeal, uncooked
• 2 Tbsp

  oatmeal, uncooked
• 7 Tbsp

  sugar
• 1 tsp

  vanilla
• 4 Tbsp

  butter, cut into cubes