Measure out and prepare all of the ingredients. Preheat oven to 350F and line a bread pan with parchment paper.

Put the riced cauliflower in the microwave for 3-4 minutes or until tender, stirring occasionally. Wring the excess moisture out of the cauliflower rice by adding a small amount to a tea towel and wringing it. Do this until all the cauliflower rice is wringed out.

In a bowl, add the egg whites. Beat with a mixer until stiff peaks form.

In another bowl, combine egg yolks, butter, almond flour, baking powder, and salt. Mix together until you achieve a smooth consistency. Stir in the cauliflower rice.

Fold the egg whites into the egg yolk mixture carefully a little bit at a time. The consistency should be fluffy.

Pour the cauliflower dough into the bread pan. Bake in the preheated oven for 45-50 minutes.