Three short lines hold two quiet moments. In the first, ice is settling over the fields, a slow change we can picture but barely hear. Then the speaker turns to something warm and ordinary: after the walk, they eat cake.
The title, "Icing," does a lot of the work. It means the frost spreading over the land, but it also means the sweet coating on a cake. That one word links the cold outdoors to the cozy indoors, so the fields start to look like something frosted and edible.
The speaker's feeling is never stated, but the tone suggests contentment. The word "our" tells us the walk was shared, and the cake feels like a small reward afterward. The mood is calm, gentle, and a little playful. The poem seems to say that simple pleasures, like a cold walk followed by something sweet, are enough.