These Funfetti Cinnamon Rolls are soft, gooey, super cinnamony, and topped with a cream cheese glaze! They're also all dressed up for any occasion with lots of rainbow sprinkles! Note that the dough proofs in the refrigerator overnight (8-24 hours) for best flavor, so make sure to leave yourself time!
In a small saucepan, combine sour cream, butter, salt, and ¼ cup sugar. Warm mixture over medium-low heat just until the butter melts. Remove from the heat, and set aside to cool to 110°F-115°F, about 10 minutes.
In a small bowl, combine the warm water, yeast, and 1 teaspoon sugar. Set aside until foamy, about 5 minutes.
Combine sour cream mixture, yeast mixture, and eggs in the bowl of a stand mixer. Using the dough hook attachment on medium-low speed, gradually add the flour until a soft dough forms. Add the sprinkles and mix just to incorporate, being careful not to overmix and smash all the sprinkles. The dough will pull away from the sides of the bowl, but will still stick to the bottom.
Turn the dough out onto a floured work surface and knead until dough is smooth and elastic, about 10 minutes. Try to add as little flour as possible while kneading.
Place the dough in a greased bowl, turning the dough over to grease the top. Cover the bowl and refrigerate the dough overnight (8-24 hours).
After refrigerating, turn the dough out onto a lightly floured work surface and roll into a 20"x16" rectangle. Introduce as little additional flour as possible. Alternatively, you can roll the dough out on a nonstick pastry mat (see note).
For Filling:
Combine all filling ingredients in the bowl of a stand mixer. Mix until thoroughly combined, scraping down the sides of the bowl as needed.
Assembly/Baking:
Spread the filling mixture over the dough evenly, leaving a 1" border on the long sides with no filling.
Roll the dough up from a long edge. Trim rough ends, if necessary, and discard. Using a thin, serrated knife, cut the roll into 12 equal pieces.
Place the cut pieces in a greased 9"x13" pan. Cover the pan and let the rolls rise until doubled, about 1-1½ hours.
Preheat oven to 350°F. Bake cinnamon rolls about 20 minutes, or until the tops are golden.
For Glaze:
Combine all glaze ingredients in a microwave safe bowl. Stir to combine. Microwave briefly until mixture is smooth and pourable. Pour over cinnamon rolls, and garnish with additional rainbow sprinkles, if desired.Enjoy!
Notes
Note on pastry mat: Rolling the dough out on a pastry mat keeps the dough from sticking to your counter (and it won't stick to the pastry mat!) without introducing additional flour to the dough. If you're looking for one, you can find them online here.