Bursting Blueberry Cake (Print Version)

# Ingredients:

→ Crunchy Topping (Crumble)

01 - 60g unsalted butter, melted
02 - 1/8 teaspoon cooking salt
03 - 1/2 cup caster sugar
04 - 1/4 teaspoon vanilla extract
05 - 2/3 cups plain flour
06 - 1/2 teaspoon ground cinnamon

→ Vanilla Lemon Cake Base

07 - 90g unsalted butter, melted and slightly cooled
08 - 1 tablespoon lemon zest
09 - 1 teaspoon vanilla extract
10 - 1/3 cup sour cream, at room temperature
11 - 1/4 teaspoon cooking salt
12 - 3/4 cup caster sugar
13 - 2 teaspoons baking powder
14 - 2 large eggs, at room temperature
15 - 1/3 cup full fat milk, at room temperature
16 - 1 1/3 cups plain flour

→ Blueberry Mixture

17 - 500g fresh blueberries
18 - 3 tablespoons plain flour
19 - 2 teaspoons lemon juice
20 - 2 tablespoons caster sugar

# Instructions:

01 - Turn on the oven to 200°C (or 180°C with the fan). Cover the base of a 20cm springform pan with baking paper.
02 - Mix the flour, sugar, salt, and cinnamon in a medium bowl. Pour in the melted butter and vanilla, stirring gently with a fork until you get crumbly clusters.
03 - Using a grater, remove the zest from the lemon. Keep it nearby for the batter and save the juice for later.
04 - Drizzle the blueberries with lemon juice, then sprinkle over the sugar and flour. Gently stir until they're fully coated and set aside.
05 - In a small bowl, whisk together the flour, salt, and baking powder until blended.
06 - In a bigger bowl, whisk the sugar, eggs, lemon zest, and vanilla until airy. Add melted butter and sour cream, stirring until it's smooth and creamy.
07 - Fold the dry mix into the wet mix in small portions using a spatula. Stir in the milk last, stopping when just combined (a few lumps are fine).
08 - Pour the batter into your prepared pan. Evenly place the blueberries on top, including any extra flour coating. Add the crumble, covering about 85% of the surface. Press any powdery bits into clumps if needed.
09 - Pop it in the oven for about 65 minutes, rotating halfway. Use a skewer to check the center; it should come out clean (a bit of blueberry smear is okay).
10 - Let the finished cake cool in the tin for 10 minutes. Then take off the side of the pan and let it cool another 10 minutes before cutting.
11 - Best served warm with a scoop of ice cream. If you prefer, you can also eat it at room temp with a dollop of cream.

# Notes:

01 - Fresh blueberries are ideal, but frozen ones work. Use directly from frozen and coat as listed.
02 - Make sure the eggs, sour cream, and milk aren't cold—room temp ingredients help with texture.
03 - Check that your baking powder is still active if it’s been sitting around.