Small Batch Mini Cinnamon Sourdough Babka Loaf

Bahan-bahan (4 porsi)

• 187.5 grams all purpose flour
• 53.5 grams whole milk
• 53.5 grams egg (about 1 egg)
• 4 grams salt
• 14.5 grams sugar
• 23 grams sourdough starter (young but mature)
• 50 grams unsalted butter (at room temp, cut into small pieces)
• 100 grams brown sugar
• 1.5 tbsp unsalted butter (melted)
• 7.5 grams all purpose flour
• 1.5 tsp cinnamon
• 1/8 tsp salt
• 1 tbsp sugar
• 1 tbsp boiling water