Step 1: Prepare the Dough
Combine sourdough starter, water, flour, honey, eggs, and melted coconut oil in a stand mixer.
Knead until the dough is smooth and elastic. Use the windowpane test to ensure gluten development.
Step 2: Overnight Fermentation
Place the dough in a greased bowl and cover it tightly.
Allow the dough to ferment at room temperature for 8–12 hours (overnight).
Step 3: Add Final Ingredients
In the morning, knead in 1/2 teaspoon baking soda, 1/2 teaspoon baking powder, and a pinch of salt.
Step 4: Prepare the Cinnamon Sugar Filling
Mix softened butter, brown sugar, and cinnamon until smooth.
Step 5: Shape the Rolls
Roll out the dough into a rectangle (about 12x18 inches).
Spread the cinnamon sugar filling evenly over the dough.
Roll the dough tightly and cut into 12 even pieces using unflavored dental floss or a sharp knife.
Step 6: Bake the Rolls
Arrange rolls in a greased baking dish.
Preheat the oven to 375°F (190°C). Let the rolls rise for 30–60 minutes if they feel slightly stiff.
Bake for 20–25 minutes, or until golden brown.
Step 7: Make the Cream Cheese Frosting
In a small saucepan, combine cream cheese, heavy cream, maple syrup, and vanilla.
Heat gently and stir until smooth.
Pour the frosting over warm rolls and spread evenly.