rhubarb streusel cake

Ingredients For rhubarb streusel cake

• ingredients
• 2 Tbsp

  butter-softened
• 1 c

  sugar
• 1

  egg
• 2 c

  all purp flour
• 1 tsp

  baking powder
• 1/2 tsp

  baking soda
• 1/2 tsp

  salt
• 1 c

  buttermilk (no buttermilk- take 1 tbls vinegar or lemon juice, place into measuring cup then fill w/milk to 1 cup mark and let sit for 5 minutes)
• 3 c

  rhubarb chopped
• streusel topping
• 1/4 c

  all purp flour
• 1/4 c

  sugar
• 2 Tbsp

  butter melted
• vanilla sauce
• 1/2 c

  butter (1 stick/8 tbls)
• 3/4 c

  sugar
• 1/2 c

  evaporated milk
• 1/2

  vanilla bean ((substitute is 1-2 teaspoons pure vanilla extract)