Pistachio Coffee Cake with Streusel (Print Version)

# Ingredients:

→ Brown Sugar Pistachio Streusel

01 - 1/2 cup (113g) unsalted butter
02 - 1 cup (200g) light brown sugar
03 - 1 1/4 cups (150g) all purpose flour
04 - 1 1/2 teaspoons ground cinnamon
05 - 2/3 cup (150g) crushed pistachios

→ Cake Batter

06 - 1 3/4 cups (210g) all purpose flour
07 - 2 teaspoons baking powder
08 - 1/2 teaspoon salt
09 - 9 tablespoons (125g) unsalted butter, room temperature
10 - 3/4 cup plus 2 tablespoons (175g) granulated sugar
11 - 2 large eggs, room temperature
12 - 1 1/2 teaspoons vanilla
13 - 1/2 cup (110g) whole milk, room temperature
14 - 1 tablespoon coffee grounds
15 - 3 tablespoons (45g) sour cream, room temperature

→ Espresso Glaze

16 - 1/2 cup (60g) powdered sugar
17 - 1 tablespoon espresso

# Instructions:

01 - Bring butter, eggs, milk and sour cream to room temperature (about 1 hour). Mix 1 tablespoon of coffee grounds into the milk and let it infuse while other ingredients come to temperature.
02 - Melt the butter in a medium bowl. Mix in brown sugar, flour, cinnamon, and crushed pistachios with a fork until small clumps form.
03 - Preheat oven to 350°F (175°C). Butter a 9-inch cake pan and line with crinkled parchment paper, pressing it up the sides to create handles for easy removal.
04 - Whisk together flour, baking powder, and salt in a small bowl.
05 - Beat butter and sugar until light and fluffy, about 3-4 minutes, using either a hand mixer or stand mixer with paddle attachment.
06 - Beat in eggs and vanilla for 1 minute until well combined.
07 - Gently fold in half the flour mixture, then mix in the coffee milk and sour cream, followed by remaining flour mixture.
08 - Pour half the batter into the pan, top with 1/3 of the streusel, add remaining batter and finish with remaining streusel. Bake 40-50 minutes until a toothpick comes out clean.
09 - Whisk powdered sugar with espresso until smooth. Once cake is completely cool, drizzle with glaze before serving.

# Notes:

01 - This light and fluffy coffee cake combines the rich flavors of pistachios and coffee, topped with a delicious brown sugar streusel and espresso glaze.