Yes, but use about three-quarters the amount of oil compared to butter. Butter contains water and milk solids that affect texture, so the swap works best in moist recipes like muffins and quick breads. In cookies, you'll lose some of that crisp edge.

A flax egg is reliable for binding in baked goods. Mix one tablespoon of ground flaxseed with three tablespoons of water and rest it five minutes. Chia seeds work the same way, with a mild nuttiness that's barely noticeable once baked.

Honestly, sometimes yes. Coconut milk adds a slight sweetness. Almond flour brings nuttiness. The key is knowing which substitutes stay neutral and which ones shift the dish's character. In most savory recipes, the other seasonings cover the difference well enough that you won't care.

Whole milk plus butter replaces one cup of heavy cream in most cooked recipes. Use three-quarters cup of milk and one-quarter cup of melted butter. For whipping it won't hold peaks, so chilled full-fat coconut cream is your best bet.

Rarely. Most single gluten-free flours absorb liquid differently and lack the protein structure that gluten provides. A pre-made gluten-free baking blend is usually closer to 1:1. Even then, you may need a binding agent like xanthan gum if your blend doesn't already include it.