A high moisture extrusion apparatus 100 suitable for manufacturing foodstuffs comprises an extruder barrel 102. The extruder barrel 102 comprises: an inlet port 108 for input of a first material 110 into the extruder barrel； an injection port 114 for input of a second material into the extruder barrel； and an outlet port 118 for output of a combination of the first and second material from the extruder barrel 102. The injection 114 port is located intermediate to the inlet and outlet port, and closer to the outlet port 118 than the inlet port 108. Also disclosed is the high moisture extrusion apparatus above, wherein the location of the injection port is not defined, yet comprises a high pressure pump. The extrusion apparatus can be used to produce a meat alternative product with a marbling colour effect.
