The month of May brings my birthday and wedding anniversary, so we usually end up making a cake or two. We don't usually do anything fancy. Usually a store-made cake. But this year with the pandemic, we ended up just getting some boxed cakes - Betty Crocker, Duncan Hines. Those sorts of things.

The problem is that they call for eggs and I'm allergic to egg yolks. (Not egg whites, oddly enough - just egg yolks.) So I've found some egg substitute. It works pretty well considering there's no egg in it. But I've found that when I use it in cakes, sometimes they turn out just fine, and other times they end up falling apart.

I know that eggs can be used for flavor, as a rising agent, as a binder, etc. but it's not clear to me how to tell which thing it's being used for in a given recipe. So my question is, in the case of a cake, are there other things I could substitute for egg yolks? The stuff I'm using has potato starch, baking powder, and psyllium husks. I guess the baking powder handles the rising aspect and the psyllium husks are probably like a binder? Are there other things I could be using?

I'm now T-1 to 2 days from having my sourdough starter that was created from nothing but natural yeast around where I live (and obviously generous amounts of flour or water) to being ready to bake/cook with. This is my first time working with starters, and dough in general, so I'm really looking forward to baking my own sourdough bread in the oven, or making a classic sourdough pizza with mozzarella and a marinara sauce (this is first on the list!).

I've been feeding it twice daily for several days now, and am getting close to the doubling-within-a-day metric many use as a baseline for when it's "ready", although I haven't tried the float test quite yet It's got an almost fruity, alcoholic aroma to it—with no funky, displeasing notes.

Here's the first recipe I'm planning, unfortunately our oven barely goes above 500°F, and I don't have any handy sources of thermal mass to properly cook a pizza, so I'm hopeful a cast-iron approach to really crisping the base on the stove first will pay dividends.

Seamus Blackley has also been a bit of an inspiration.

Anyone got any tips? Recipes to share? Surely I'm not the only person on Tildes trying this (for obvious reasons).