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Ingredient Substitutes

Calculated swap amounts for the ingredients people run out of mid-recipe, with notes on what each substitute does to texture and flavour.

Replacing 1 cup of butter — pick whichever option you already have in the cupboard.

  • 3/4 cups

    Neutral oil

    Best for baking

    Use three quarters as much oil by volume. Works well in muffins and quick breads, but not in creamed cookie doughs that need solid fat.

  • 1 cup

    Margarine (block, not spread)

    Best for baking & cooking

    A straight swap. Avoid tub spreads — the extra water thins batters and spreads cookies.

  • 1 cup

    Shortening

    Best for baking

    Gives taller cookies and flakier pastry, but no buttery flavour. Add a pinch of salt.

  • 1/2 cups

    Greek yogurt

    Best for baking

    Halves the fat and adds tang. Good in cakes and muffins; the crumb will be denser and moister.

  • 1/2 cups

    Unsweetened applesauce

    Best for baking

    Replace up to half the butter to cut fat. Reduce any added sugar slightly.

  • 1 cup

    Coconut oil (solid)

    Best for baking & cooking

    Behaves like butter at room temperature. Refined coconut oil avoids the coconut flavour.

How to choose a substitute

Ask what the missing ingredient was doing. Butter contributes fat, water and flavour and it holds air when creamed. Eggs bind, enrich and lift. Buttermilk brings acid that reacts with baking soda. A good substitute copies the function that matters most in that particular recipe, and you accept the trade-off elsewhere.

Substitutes that rarely work

  • Baking soda for baking powder, one for one. Soda needs an acid to react with, and used alone it tastes metallic.
  • Low-fat dairy in custards and ganache. Fat is what makes them set smoothly.
  • Liquid sweeteners for granulated sugar in cookies. The extra water spreads the dough flat.
  • Gluten-free flour without a binder. Choose a blend containing xanthan gum, or the crumb will fall apart.

Substitute, then weigh

Swaps change density, so the volume you scoop is no longer the weight the recipe expected. Once you have chosen a substitute, run it through the ingredient converter to get the gram amount and weigh it in. That single habit removes most of the risk from improvising.

Frequently asked questions

What can I use instead of buttermilk?

Add one tablespoon of lemon juice or white vinegar to a cup of milk, stir, and leave it for ten minutes until it thickens slightly. In pancakes, scones and soda bread the result is indistinguishable from the real thing.

How do I replace an egg in baking?

For structure and binding, use a flax egg: one tablespoon of ground flaxseed with three tablespoons of water, rested until gelled. For moisture only, a quarter cup of applesauce or mashed banana works. For anything that needs whipping, use aquafaba.

Can I substitute oil for butter?

Use three quarters as much oil as the butter called for, by volume. It works well in muffins, brownies and quick breads. It does not work in recipes that cream butter with sugar, because there is no solid fat to hold the air.

What if I only have self-rising flour?

Use it in place of plain flour and leave out the baking powder and salt. Self-rising flour contains about 1½ teaspoons of baking powder and ¼ teaspoon of salt per cup.

Do substitutes change the bake time?

Sometimes. Yogurt and applesauce add water, which can add a few minutes. Substitutes with more sugar, such as maple syrup, brown faster — check 5 minutes early.

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