Begin by adding your warmed oat milk and yeast to a large mixing bowl. Let sit for 3-5 minutes to make sure the yeast is activated. You will be able to tell if it's bubbling. If using instant yeast, you can skip this step and add the yeast directly to the mix with the flour and salt.

Next, add the melted vegan butter, sugar, orange juice, orange zest, and vanilla to the large mixing bowl and whisk together to combine.

Once mixed, gradually begin adding in your flour about ½-1 cup at a time. Also, add in ½ teaspoon of salt at this time.

Once all the flour has been added in, knead the dough. If using a standing mixer, switch the attachment to the bread hook and knead for 5-10 minutes until elastic. If you are kneading by hand, knead on a lightly floured surface for 10-15 minutes or until the dough is elastic and significantly less sticky. The dough is done being kneaded once it can be stretched without easily tearing and is smooth and tacky but not sticky.

Once the dough is ready, add it to a well-oiled bowl for the first rise. I prefer to coat my bowl in olive oil, but any oil works here. The dough will be sticky so you may want to lightly oil your hands before grabbing the dough

Then, cover the bowl with plastic wrap or a towel, place in a warm place, and let rise 1 hour or until doubled in size. I like to test my dough by "poking" it with a finger. If it doesn't bounce back and stays indented, it is ready. It is also important to not “overproof” the dough as it can turn sour from the yeast turning the sugar into alcohol, so do not let the dough sit too long.

In a separate bowl, mash together the softened room temperature vegan butter, brown sugar, cinnamon, and orange zest until a thick paste forms. This can also be done in a blender, food processor, or by hand with a fork. Set aside.

Roll the orange dough into a 1" thick rectangle that is around 9*14 inches in width and length. You don't want the dough to be too thin or you will have a hard time rolling it up once the filling is inside!

After the dough is rolled out, use a spatula to spread the cinnamon sugar filling evenly across the dough. Make sure to leave a ¼ inch border around the edges of the dough without filling.

Beginning with the longer side of the rectangle, tightly roll up the dough into a log. Lightly flour the dough as you go to help if it gets a bit sticky. Make sure to seal the roll by pinching the edges together. Then, flip the dough over so the pinched seal is facing down.

Once the dough is rolled into a log, trim the ends and discard. Cut the remaining dough into 10 evenly sized rolls using a very sharp knife or using dental floss.

Place the rolls into a large ceramic pan (I used a 14.5” oval pan), cover with plastic wrap or a towel, and let rest overnight in the fridge for 6-8 hours. (You can also let the dough rise another 30 minutes- 1 hour while the oven is preheating if you can't wait until the morning).

Preheat the oven to 350F.

Once the oven is preheated, remove the plastic wrap or towel from the pan of rolls and add the pan to the oven. Bake the rolls for 35-40 minutes or until cooked through. Then, remove the rolls from the oven and let cool slightly. While the rolls are cooling, make the orange glaze.

Add the powdered sugar and orange juice to a bowl and whisk together until a smooth, but thick, glaze forms.

Then, pour the glaze over the warm cinnamon rolls and serve!