Irish apple pie

Ingredients:

Streusel

• 6 tablespoons chilled salted butter, plus extra for greasing the pan
• 3/4 cup premium flour
• 1/4 cup oatmeal
• 0.5 cup granulated sugar
• A pinch of salt

Pie

• 110 g salted butter at room temperature
• 0.5 cup granulated sugar
• 2 tsp vanilla extract
• 2 large eggs
• 1 and 1/4 cups premium flour
• 1 teaspoon baking powder
• 1 teaspoon ground cinnamon
• 1/8 tsp salt
• 3 tbsp. milk
• 3 Granny Smith apples, peeled and thinly sliced
• Powdered sugar, for dusting

Preparation:

1. Preheat oven to 175°C. Grease a 22cm round baking pan with butter and line the bottom with parchment paper.
2. Prepare the streusel:
   
   In a medium bowl, combine the flour, oats, granulated sugar, and salt. Rub the cold butter into the flour mixture until it's completely incorporated and the mixture has the texture of coarse breadcrumbs. Refrigerate while you prepare the pie.
3. Make an apple pie:
   
   In a large bowl, beat the butter and sugar with a mixer on medium-high speed until light and fluffy. Add the vanilla extract, then beat in the eggs one at a time. In a medium bowl, whisk together the flour, baking powder, cinnamon, and salt. Using a rubber spatula, fold the flour mixture into the liquid mixture along with the milk. Transfer the finished batter to the prepared pan and top with the sliced ​​apples in an even layer. Top the apples with streusel.
4. Bake the pie until the top is golden brown and crisp, 60-70 minutes. Remove from the oven and let cool slightly, then transfer the pie to a wire rack. When ready to serve, dust the pie with powdered sugar.