Old Woman Frying Eggs is a genre painting by Diego Velázquez, produced during his Seville period.
Velázquez frequently used working-class characters in early paintings like this one, in many cases using his family as models; the old woman here also appears in his Christ in the House of Martha and Mary (1618).
[1] Like others, it shows the influence of chiaroscuro, with a strong light source coming in from the left illuminating the woman, her utensils and the poaching eggs, while throwing the background and the boy standing to her right into deep shadow.
Here the chiaroscuro is very intense, so much so that it would be impossible to see the wall at the bottom of the painting but for the basket hanging from it; it simultaneously manages to combine the murky darkness and high contrasts of light and shadow with the use of subtle hues and a palette dominated by ochres and browns.
The realism is nearly photographic and shows everyday plates, cutlery, pans, pestles, jugs and mortars, capturing the special shine on a glass surface and the light's play on the melon carried by the boy.