• Make the dough by mixing together the warm water, yeast and sugar in the large mixing bowl of a stand mixer (or in a large mixing bowl using a dough whisk, if making by hand). Let it sit for about 5 minutes, or until bubbly.
• Add the salt, oil, and flour, 1/2 cup at a time, until the dough pulls away from the sides of the bowl and is no longer sticky. Knead the dough for 5-10 minutes until it becomes smooth and elastic. Cover the dough and let it rise for 1-1 1/2 hours.
• While the dough is rising make the strawberry and crumble fillings.
• Remove the dough from the bowl onto a lightly greased surface and roll it into a large rectangle about 20 inches long.
• Spread the strawberry filling over the dough, leaving about an inch around the edges.
• Place the blueberries on top of the strawberry filling and sprinkle the crumble mixture on top. Reserve some of the crumble topping to decorate the frosting, if desired.
• Roll the dough up lengthwise, lifting the dough as you roll to keep the mixture inside the dough.
• Using a serrated knife, slice every 1 1/2 inches. Place each roll on a greased baking sheet about 2 inches apart. Cover the rolls and let them rise for 30-45 minutes.
• Bake at 350 degrees F for 15-20 minutes, or until golden brown. Let them cool on the baking sheet for about 5-10 minutes before icing. Spread the frosting on each roll and sprinkle with the reserved crumble mixture or decorate with cut up strawberries and blueberries. Enjoy!

Strawberry Filling

• Add the strawberries, sugar, salt, and lemon juice to a pot and stir together. In a separate container, mix together the water and cornstarch until the cornstarch is fully dissolved. Add the cornstarch mixture to the pot and cook on medium low heat, stirring frequently.
• Allow the mixture to simmer for about 5-10 minutes, or until it thickens and becomes glossy and a deep red color. Remove from the heat, pour into a bowl and chill in the refrigerator until ready to use.

Crumble Filling

• Add all the ingredients into a large mixing bowl and beat together until fully incorporated. The mixture should be lumpy with small round pieces lumped together. Spread the mixture on a parchment lined baking sheet and bake at 300 degrees F for 15-20 minutes, until golden brown. Let the mixture cool on the pan until ready to use. Break up the filling into smaller pieces if needed.

Cream Cheese Frosting

• Cream together the butter, cream cheese, vanilla and salt. Mix in the powdered sugar 1/2 cup at a time until fully incorporated.