blueberry lemon cake

Ingredients For blueberry lemon cake

• FOR THE CAKE
• 6 Tbsp

  butter
• 3/4 c

  firmly packed light brown sugar
• 2

  lemons, thinly sliced
• 1 pkg

  12 ounces frozen blueberries, thawed and drained
• 1/4 c

  all purpose flour
• 1/4 c

  sugar
• 2 Tbsp

  orange zest
• 1 pkg

  8.5 ounce corn muffin mix
• 1

  egg
• 1/3 c

  whole buttermilk
• 1 tsp

  vanilla
• oatmeal streusel (below)
• FOR THE OATMEAL STREUSEL
• 1/3 c

  all purpose flour
• 6 Tbsp

  firmly packed light brown sugar
• 1/4 tsp

  ground cinnamon
• 1/4 tsp

  salt
• 3 Tbsp

  chilled unsalted butter, diced
• 1/3 c

  quick cooking oats
• 1/3 c

  chopped pecans