To make these orange olive oil muffins, preheat your oven to 350°F and line a muffin tray with nine liners. Spray each liner with a little nonstick spray to prevent sticking, and set the tray aside.
Add the quartered orange (seeds removed), eggs, olive oil, vanilla extract, Greek yogurt, and monk fruit to a blender. Blend on high until the mixture is completely smooth — you want no visible chunks of orange peel remaining.
Next, add the gluten-free flour, baking soda, and sea salt directly to the blender. Gently pulse just until the dry ingredients are incorporated — be careful not to overmix, as this can make the muffins dense. Stop as soon as you no longer see dry flour streaks.
Divide the batter evenly among the nine prepared muffin cups, filling each about ¾ of the way full. Transfer the tray to the oven and bake for 26–27 minutes, or until a toothpick inserted into the center of a muffin comes out clean.
Allow the muffins to cool completely before adding the glaze.
If you're making the glaze, whisk together the powdered monk fruit and orange juice in a small bowl until smooth.
Once the muffins are fully cooled, drizzle the glaze over the top and allow it to set for a few minutes before serving. Enjoy!