Irish Apple Cake - ChowMouth

Ingredients

• 1/2 cup (1 stick) unsalted butter at room temperature
• 1/2 cup sugar
• 2 large eggs
• 3 Tbsp milk or cream
• 1 1/4 cups all purpose flour
• 1 tsp baking powder
• 1 tsp cinnamon
• 1/8 tsp salt
• about 3 Granny Smith apples, peeled and thinly sliced
• confectioner’s sugar for dusting
• 3/4 cup flour
• 1/4 cup old fashioned rolled oats
• 6 Tbsp unsalted cold butter, cut in small pieces