She seems to be dreaming about baking, but (the ad points out) baking is drudgery so why not order bread and pastries from the Eagle Bakery. It sort of makes sense. I guess.
The funny thing is, there are lots of household jobs that I think are WAY more annoying and laborious than baking. Baking is kind of fun. I like making muffins and kneading bread - not every day, though, and yes, that's the point in this ad (which is from about 1911, I think - I clipped it awhile ago).
Before we had kids I did do more baking - braided bread, stollen at Christmas, that sort of thing. Once, a long time ago, I made someone a Christmas present of 3 kinds of shortbread in a fancy tin. Plain, chocolate chip and lavender shortbread. I can't imagine doing that now. In fact I reckon that that bride wearing an oven as an earring probably has more time and energy to make pastries than she will later on.
Because it isn't pastry that's going to age her, Mr. Bridegroom, it's all the mopping and scrubbing and child wrangling she'll be doing as the 1920s get roaring, that's what. My grandmother did all that in the 1920s and made her children's winter coats, too. Can you imagine, making a heavy winter coat by hand? I can't. And she had 3 children! Of course, she could have gone to a dry goods' store. And, of course, the bakery after that.