Cinnamon Babka

Name: Cinnamon Babka
Prep time: 3 h
Cook time: 40 min
Total time: 3 h 40 min
Cuisine: European, Eastern European
Ingredients: 3 3/4 cups (525g) all-purpose flour, plus extra for dusting; 1/3 cup plus 1 tablespoon ((75g) granulated sugar (optional - replace 20g of the sugar with honey, I love the texture it gives)); 1 tablespoon (10g) instant dry yeast; 1 1/4 teaspoons fine sea salt; 2 large eggs (, plus 1 egg yolk); 2/3 cup (160 ml) warm water; 3/4 stick ((85g) unsalted butter, at room temperature or melted); Neutral oil ((vegetable, canola), for greasing); 150 g unsalted butter (, softened to room temperature); 3/4 cup (150g) light brown sugar (granulated sugar is ok, too); 2 tablespoons ground cinnamon; 1/2 cup (120 ml) water; 1/2 cup (100 g) granulated sugar