[Photograph: Elizabeth Bomze]

How did the breakfast sandwich "The Rapture" at the beloved East Boston eatery Scups in the Harbour, get its name? Owners Wendy Saver and David Rockwell have a little secret—they named it after all the customers who skip Sunday morning church just to come eat it.

Known for its bizarre location (the Boston Harbor Shipyard and Marina), Scups in the Harbour offers waterfront views of the city skyline (best observed from Piers Park across the street), plenty of free parking (are we still in Boston?), and killer brunch food (like the Rapture).

So, why do people skip morning prayer for it?

Bread: Locally baked white loaf that's grilled until lightly charred in spots. Both crust and crumb are substantial, but not chewy like an artisan-style bread.

Spread: Housemade tomato jam. Ultra-concentrated, sweet-tangy, and with a little kick to it. Saver wasn't quite ready to divulge the entire ingredient list, but she did mention ginger, and I'm pretty sure I spotted some mustard seeds.

Eggs: Ever had fried matzoh? (I know, ironic comparison in this context, but stay with me...) That's kind of what I think of here, except there's more egg, and instead of matzoh, it's potato chips. The eggs are scrambled with the crushed chips and cook up as small, flaky, slightly chewy (in a good way) sheets that stay surprisingly well packed into the bread. Great alternative to the typical fried egg sandwich (though if you want a fried egg sandwich, go halfsies with someone on the Breakfast BLT—worthy of its own post).

Greens: Baby arugula. The delicate texture and bitter edge is all you want here. Anything else would be distracting.

Optional Bacon: Is bacon ever really an option? Especially when it's thick-cut cherrywood-smoked bacon? OK, to be fair to vegetarians and others who abstain from pork products, part of what makes this sandwich so special is that the meat-free rendition is so good. But if you're so inclined, opt for the bacon. It pairs perfectly with the tangy jam and peppery arugula, and upgrades the whole package to, as many of their loyal patrons have pointed out, a near-religious experience.

Other important stuff to know: Scups is a delightfully quirky place that keeps quirky hours. They serve lunch, afternoon snacks, and suppers Wednesday through Friday from 11 a.m. to 8 p.m., lunch/brunch on Saturday from 10 a.m. to 3 p.m., and strictly brunch on Sunday from 10 a.m. to 3 p.m. Most importantly, the Rapture is only available on Saturdays and Sundays.

Cash only.

The drinks are terrific. Highly recommend Summer in a Glass (available in the off-season as well) and the Arnold Palmer, not to mention their well-chosen roster of beer.

Play board games while you eat. They keep a bunch on-hand; help yourself. (Yes, that's Boggle blurred in the background of the photo.)

Here's what to type into your GPS: 265 Marginal Street, East Boston (Building 16, between Pearl Place and Jeffries Street). Alternatively, you can walk it from Maverick Station or--and this is the fun option when picking people up at the airport--take City Water Taxi from Logan directly to their dock.

Scups in the Harbour

265 Marginal Street, Boston MA 02128 (map); 617-569-7287
scupsintheharbour.com