Unsalted Butter (Best Option)
1:1 by weight (e.g., 100g butter for 100g coconut oil)Butter contains about 80% fat and 20% water, similar to coconut oil’s pure fat content, but with a rich dairy flavor that complements quiche fillings. The melting point of butter allows it to create steam during baking, which helps produce a flaky crust.
For best results, use cold unsalted butter cut into small pieces and work it quickly into the flour to avoid overworking the dough. Chill the dough before rolling to maintain structure.
Compared to coconut oil, butter adds a more traditional buttery flavor and slightly softer texture, enhancing the overall richness of the quiche without overpowering the filling.