Agristada

Beat the eggs with the oil until they’re well combined.
In a small dish, mix the flour with enough chicken broth (about 3 Tablespoons) to make a smooth paste. Slowly add the mixture to the eggs as you whisk.
Gradually add the chicken broth and lemon juice, stirring constantly to combine.
Pour the mixture into a 2-quart saucepan and stir constantly over medium heat until it thickens enough to coat the back of a spoon. Season to taste with salt and pepper.
Strain directly into a serving dish and serve warm (not hot) over chicken or vegetables, garnished with the lemon zest and parsley.