Paul Zerkel will tell you he didn’t set out to open a bakery. He was a cook, then a chef, then someone who got fixated on bread in a way that tends to consume people. By the time he opened Rocket Baby Bakery on North 70th Street in Wauwatosa — right at the edge of the stretch locals call the Tosa Village — the fixation had become a business, and the business had become something the neighborhood genuinely needed.
That was 2013. The place is still there, still small, still packed by 9 a.m. on a Saturday.
Zerkel’s background shows in how the menu is built. This isn’t a coffee shop that happens to sell pastries. The bread program is the spine of everything. The country sourdough loaves come out of the oven with a crust that actually means something — crackly, dark in spots, smelling like something that took real time to make. The crumb is open without being showy about it. You can taste the fermentation without it tipping into sour. Loaves run around eight to ten dollars and they’re gone by mid-morning most weekends, so if you want one, you should know that going in.
Beyond the bread, the pastry case leans savory as often as sweet. The ham and gruyère croissant has been a fixture for years — buttery, layered properly, not the kind of thing that collapses into grease the way lesser versions do. The morning bun shows up seasonally with orange zest and sugar that caramelizes at the edges. Kouign-amann when they feel like it. The selection shifts, which Zerkel has always treated as a feature rather than an inconvenience.
The space itself is tight. There are maybe a dozen seats, a small bar along the window, exposed brick along one wall. It doesn’t try to be anything it isn’t. The staff tend to know regulars by order if not by name, and the line moves efficiently even when it stretches to the door. You order at the counter, grab your coffee — Colectivo, pulled well — and find a spot or take things to go.
What sets Rocket Baby apart from the broader Milwaukee bakery scene isn’t novelty. Zerkel isn’t chasing trends or putting unexpected ingredients in things just to be interesting. The menu is disciplined in a way that reflects someone who has cooked seriously for a long time. When he does something new, it’s because he’s worked it out, not because a food publication told him to.
He’s also opened a second location in Washington Heights on North 52nd Street, which carries much of the same menu and has a little more room to spread out. But the Tosa original has the feeling of a place that grew out of its specific corner of the city — the morning crowd is a mix of young families from the neighborhood, older regulars who’ve been coming since the first year, cyclists heading out on the trails nearby. It’s a genuinely local cross-section in a way that’s harder to manufacture than it looks.
Go on a weekday if you want any shot at a loaf. Go on a weekend if you don’t mind the wait and want the full experience of the place at its busiest. Either way, bring cash or a card, expect to spend twelve to eighteen dollars, and don’t skip the bread.
