Substituting stevia for erythritol in recipes
No, you can't. If you're talking about pure stevia it needs to be mixed with another sweetener to add bulk and texture, as well as to minimise its bitter after-taste. For a cake, I use erythritol + 1 tsp pure stevia at most, depending on other ingredients in the mix. You could try an allulose blend instead of erythritol, but it isn't available in the UK.