Make Spinach Feta Swirl Bread Recipe for savory brunch or sandwiches—warm, tender bread with a tangy spinach-feta spiral.
Warm the milk to a comfortably warm 105–110°F (40–43°C), then whisk in the sugar and sprinkle the instant yeast on top. Give it a quick stir and let it sit for about 5 minutes until the surface looks slightly foamy and alive — that gentle foam is your green light that the yeast is active and warm. Keep the small clear glass milk jug and a tiny glass bowl of sugar nearby to echo the raw-ingredients layout in the photos.
Add the all-purpose flour and fine sea salt to a roomy matte grey ceramic mixing bowl, crack in the room-temperature egg, and scatter the soft butter in small pieces over the flour. Pour the foamy milk-yeast mixture into the bowl and mix with a wooden spoon or dough whisk just until a rough, shaggy dough forms and nearly all the flour is moistened. If it’s overly sticky, dust a tablespoon or two more flour until the dough is soft and slightly tacky but still cohesive.

Turn the dough onto a lightly floured work surface and knead by hand for 8–10 minutes (or use a stand mixer with a dough hook for 6–8 minutes) until the dough becomes smooth, elastic, and slightly tacky — you want a faint sheen, resilience, and a passing windowpane if you stretch a bit. Lightly oil a clean bowl with olive oil, shape the dough into a tight ball, place it in the bowl, cover with plastic or a damp towel, and let it rise in a warm spot until it has doubled and gently springs back when pressed.

While the dough rises, squeeze every drop of moisture from the thawed chopped spinach using a clean kitchen towel or layers of paper towel — the spinach should feel firm and only slightly cool, not wet or dripping. In a single medium ceramic bowl combine the very well-squeezed spinach with crumbled feta, finely minced garlic, thinly sliced green onions, chopped fresh dill, black pepper, and a whisper of nutmeg if you like. Fork-mix until the mixture is uniformly speckled with white feta and vivid green flecks; taste and only add salt if necessary. Display the drained spinach in the towel and the finished filling in the same ceramic bowl for continuity.

Deflate the risen dough gently on a lightly floured surface and let it rest for 5 minutes to relax the gluten. Roll the dough into a roughly 16 x 12-inch rectangle, keeping it about 1/4 inch thick and dusting flour sparingly to prevent sticking. Evenly spread the spinach-feta filling across the dough, leaving a 3/4-inch border, and lightly press the filling so it adheres. Starting at the long edge closest to you, roll the dough tightly into a firm log and pinch the seam and ends closed so the filling is sealed. Gently place the log seam-side down into a lightly oiled 9 x 5-inch metal loaf pan, shaped to fit from end to end.

Cover the pan loosely and allow the loaf to rise again until it looks puffy and reaches about an inch above the rim — it should spring back slowly when touched. Meanwhile preheat the oven to 350°F (175°C), and whisk together the egg and a tablespoon of milk in a small clear bowl to make a glossy egg wash. When the loaf has finished its second rise, gently brush a thin, even layer of egg wash over the top and sides, sprinkle sesame or nigella seeds if using, and prepare to bake.
Bake the loaf in the preheated oven (center rack) until deep golden brown and an instant-read thermometer reads about 190°F (88°C). If the top browns too quickly, tent with foil. Remove the pan and set it on a wire rack to cool for 10–15 minutes so the loaf firms slightly in the pan. Run a thin knife around the edges, then lift or invert the loaf out of the pan and place it right-side up on the wire rack; allow it to cool until the crumb sets.
Using a sharp serrated knife, slice the loaf into 3/4-inch thick slices to reveal the defined green-and-white spinach-feta swirl. Serve slightly warm or at room temperature on a rectangular serving tray or platter that echoes the loaf’s rectangular geometry; the crumb should be soft with a moist spiral and a lightly crisp, golden crust.
