Mandarin and ruby grapefruit jelly, blood orange granita and citrus salad

1.For blood orange granita, stir blood orange juice and sugar in a saucepan over low heat until sugar dissolves, then pour into a wide, shallow tray and cool to room temperature. Freeze, scraping granita every couple of hours with a fork to form crystals, until frozen (5-6 hours).

2.For mandarin and ruby grapefruit jelly, stir juices and sugar in a saucepan over low heat until sugar dissolves, then remove from heat. Squeeze excess water from gelatine, add to juice mixture and swirl until dissolved. Pour into a 1-litre jelly mould and refrigerate until set (5-6 hours). Jelly will keep refrigerated for up to a week.

3.Combine grapefruit, mandarin and lime segments in a bowl. Scrape granita with a fork again just before serving. Dip jelly mould in hot water and gently pull edges of jelly away from sides of mould to break the vacuum. Place a serving plate on top, invert mould and plate, and remove mould. Serve with granita and citrus salad.