• Heat oven to 350F.
• Set out butter and egg to come to room temperature.

Preparing Dough

• Proof yeast by mixing 1 tablespoon sugar in 1/3 cup warm water. Mix in yeast and set aside.
• Cream 2 tablespoons butter and 1 tablespoon sugar in stand mixer bowl. Add whisked egg and mix well.
• Mix baking soda in sour cream and add to butter, sugar, and egg mixture.
• Add dry ingredients, yeast, and lemon juice to mixing bowl and combine with wet ingredients.
• Mix well. Switch to a dough hook and knead on level 2 for approximately 10 minutes until the dough becomes smooth. Dough will be slightly wet and sticky to the touch. Resist adding additional flour.
• Drizzle a clean mixing bowl with olive oil and use a paper towl to coat the entire internal surface.
• Add the dough to the oil treated mixing bowl and cover with plastic wrap. Place bowl in a dark and warm spot to allow dough to rise for apporximately 90 minutes. Look for the dough to double in size.

Forming the Cake Ring

• Press and roll dough into a large rectangle approximately 1/4 inch thick.
• Spread 2 tablespoons melted butter on surface of the dough.
• Sprinkle an even coating of the filling mixture (1/2 cup of sugar and 2 tsp cinnamon).
• From the long side of the dough, begin to tightly roll dough into a log. The dough may still be sticky so coat your hands in flour or oil if needed. Once a log is formed, connect dough ends to form a ring.
• Spray bundt pan with cooking spray. Transfer dough ring to bundt pan.

Streusel Topping

• Mix flour, brown sugar, cinnamon, and melted shortening until well blended.
• Sprinkle topping evenly over cake.
• Cover with plastic wrap and place in a warm area of kitchen to rise.
• Allow dough to rise for approximately 1 hour until double in size.
• Bake on lower rack of oven for 20 minutes until internal temperature reaches 200 degrees F.
• Take a knife and carefully run along the edge of the pan to loosen cake.
• Take a rack and place over the cake. Flip upside down and then transfer streusel side up to a serving plate.
• Mix icing ingredients until smooth. Drizzle over cake while warm.