Put in some fruits, maybe honey or stevia. Also maybe try some coconut milk or something for creaminess and it think that has some natural sweetness? Bananas and strawberries work out well. Maybe apples, grapes, lemons idk. Try oats also and almond based products.

Eggs hold it together right?

Edit pears are cheap. Make a pie.

Try looking up vegan cake recipes! I find those are a lot more tolerant to further modification while still turning into cake.

Is it completely unsalvageable?